The sum of 12 images of 5 seconds of integration time
with the 40 cm telescope and the CCD
camera 512x512, field: 12'x12'.
The image has been treated with the Larson Sekanina rotational algorithm;
10 degrees; -2 pixels and 10 degrees rotation; -2 pixels translation and
sawtooth scaling and false color(the North is up, East on the left).The gas
shells which surround the nucleus, are clearly visible.

False-color image of comet Hale-Bopp, taken in
moonlight conditions on 1997 Feb. 22.182UT (start), with 4/90mm lens, CCD
and V filter. Exposure time was 1 minute. The field of view is 5.5x4.1 deg.
North is at the top, East to the left.

The first image was taken with a ST-6 CCD camera through a 5 inch, F10
reflector. 20 sec exposure.
The field of view is 23.1 X 17.4 arc min.
Second image was taken with a ST-6 CCD camera through a 16 inch, F10
reflector. 5 sec exposure.
The field of view is 7.3 X 5.5 . The
image is unprocessed.

A 300 second exposure of comet Hale Bopp taken using a 12 inch Maksutov
telescope, working at f5. Image was taken through a Lumicon Swann Band
filter. The original grey scale image has been coloured to show detail.
Image obtained using an SBIG ST8 camera,
working in medium resolution mode (18 micron pixels). Field of view is
approximately 0.3 degree (long RA axis) by 0,2 degrees (short declination
axis).
The second image is a false coloured version of the above 300 second exposure
of comet Hale Bopp.

The first image was taken with a ST-6 CCD camera through a 5 inch, F10
reflector. 20 sec exposure.
The field of view is 23.1 X 17.4 arc min.
Second image was taken with a ST-6 CCD camera through a 16 inch, F10
reflector. 10 sec exposure.
The field of view is 7.3 X 5.5 . The
image is unprocessed.
Third image was taken with a ST-6 CCD camera through a 16 inch, F10
reflector. 10 sec exposure. With BLUE FILTER.
The field of view
is 7.3 X 5.5 . The image is unprocessed.

The first image was taken using Fugi 800 super G plus, tracking
for 5 minutes. The lens was a 50mm at f/4. The building in the corner is a
brick tower on a hill.
The second image was taken using Fugi 800 super G plus, tracking
for 4 minutes. The lens was a 300mm at f/4.

My first drawing of Hale-Bopp based on telescopic (instead
of binocular) observation. The amazing thing that was immediately
apparent at a number of different magnifications was the pattern of
concentric bands in the major southward jet. Close examination revealed
it to be a sigmoid pattern (see inset), suggesting an expanding helix as
seen from the side. This would be consistent with the spin axis of the
comet being almost exactly perpendicular to our current line-of-sight,
and oriented in the general direction of the southward facing jet. Is
there any data to confirm or deny this hypothesis? I realize this is
stretching things do base such a conclusion on one observation!

These are
very dark prints of moonstruck negatives.
The two images are unfiltered on hypered 2415 film. The second image used a blue filter. Both
are 60-second exposures. The white-light one shows both tails
nicely, at about the same level.

First image acquired using Fujicolor 3200 Super G film
at f/3.4, 28mm wide angle lens. exposure is at
30 seconds. Foreground is illuminated by the
full moon. Although not apparent in photo, tail
is over 2 degrees long, curving upwards to the
southeast. Magnitude estimate is 1.0.
Second image acquired using Fujicolor 3200 Super G film
at f/3.4, 70mm zoom lens. Foreground is illuminated
by the full moon. More apparent in this photo
is the tail, which is over 2 degrees long,
curving upwards to the southeast. Magnitude
estimate is 1.0.

The first image is
a tri-color image taken at 11:10 UT on 02/23/97. It is the result of 14,
21, and 60 sec red, green, and blue exposures with my 7" f/9 refractor at
f/9 and ST-8 ccd camera. I have
the center of the first image processed at a larger scale and enhanced to
show the structure around the nucleus.

First image is a 30 second exposure of comet Hale Bopp taken using a 12 inch Maksutov
telescope, working at f5. Image was taken through a Red (wratten 25)
filter.. The original grey scale image has been coloured to show detail.
Image obtained using an SBIG ST8 camera,
working in medium resolution mode (18 micron pixels). Field of view is
approximately 0.3 degree (long RA axis) by 0,2 degrees (short declination
axis).
The second image is a false coloured version of the above 300 second exposure
of comet Hale Bopp,
The jets of comet Hale Bopp are visible in the third image. This image has been processed by subtracting a
15 x 15 pixel median filtered masked version of the original image which had
an exposure time of ten seconds Incidentally, the jets visible in this
picture are really easy to see with the unaided eye...

If you would like to submit a new image to this home page, contact:
Ron Baalke
ron@jpl.nasa.gov